摘要:#题目 将一系列给定数字插入一个初始为空的小顶堆H[]。随后对任意给定的下标i,打印从H[i]到根结点的路径。 #输入格式: 每组测试第1行包含2个正整数N和M(≤1000),分别是插入元素的个数、以及需要打印的路径条数。下一行给出区间[-10000, 10000]内的N个要被插入一个初始为空的小顶
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摘要:#题目 A Binary Search Tree (BST) is recursively defined as a binary tree which has the following properties: The left subtree of a node contains only no
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摘要:#题目 An AVL tree is a self-balancing binary search tree. In an AVL tree, the heights of the two child subtrees of any node differ by at most one; if at
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摘要:#题目 给定一个插入序列就可以唯一确定一棵二叉搜索树。然而,一棵给定的二叉搜索树却可以由多种不同的插入序列得到。例如分别按照序列{2, 1, 3}和{2, 3, 1}插入初始为空的二叉搜索树,都得到一样的结果。于是对于输入的各种插入序列,你需要判断它们是否能生成一样的二叉搜索树。 #输入格式: 输入
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摘要:#题目表述 An inorder binary tree traversal can be implemented in a non-recursive way with a stack. For example, suppose that when a 6-node binary tree (wi
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摘要:#题目表述 Given a tree, you are supposed to list all the leaves in the order of top down, and left to right. #Input Specification: Each input file contain
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摘要:题目 给定两棵树T1和T2。如果T1可以通过若干次左右孩子互换就变成T2,则我们称两棵树是“同构”的。例如图1给出的两棵树就是同构的,因为我们把其中一棵树的结点A、B、G的左右孩子互换后,就得到另外一棵树。而图2就不是同构的。 图1 图2 现给定两棵树,请你判断它们是否是同构的。 #输入格式: 输入
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摘要:##题目 Given a stack which can keep M numbers at most. Push N numbers in the order of 1, 2, 3, ..., N and pop randomly. You are supposed to tell if a gi
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摘要:##题目 Given a constant K and a singly linked list L, you are supposed to reverse the links of every K elements on L. For example, given L being 1→2→3→4
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